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  1. Standard member SwissGambit
    Caninus Interruptus
    05 Oct '12 14:18
    F. Gamage, 1911

    #2
  2. 05 Oct '12 14:51
    b8=Q, Qxc8, Qg3# ?

    The only way I've found the maintain the Q pin to stop the check without breaking the holding structure around the king...
  3. 05 Oct '12 14:53
    Dammit, just realised QxQ leads to check
  4. Standard member RJHinds
    The Near Genius
    05 Oct '12 14:55 / 2 edits
    Kxa5
  5. 05 Oct '12 14:58
    I thought there were two solutions to this, but I've just worked out why one of them fails. My incorrect solution didn't have a mate after 1. (move) d7-d5, although it did after 1. (move) d7-d6.
  6. 05 Oct '12 14:59
    Then what? Na4# falls to the b pawn...
  7. 05 Oct '12 15:00 / 1 edit
    ah
  8. 05 Oct '12 15:02 / 2 edits
    Kxa5, Nb2, Bxb2#

    Kxa5, Qxc8, bxc8=Q#

    Kxa5, Qc7, Qxc7#

    Kxa5, Qc5, Qxc5#

    Kxa5, Qc4, Qxc4#
  9. 05 Oct '12 15:41
    That last one isn't mate, Black can recapture with his b-pawn.
  10. 05 Oct '12 15:44 / 1 edit
    Kxa5, Qc4, Nd5#

    ?
  11. 05 Oct '12 15:45 / 2 edits
    The rook on d4 is hanging!

    Your key move is much too mundane to be the solution.
  12. 05 Oct '12 15:50
    Balls 🙂
  13. 05 Oct '12 15:54
    Ok, how about...
    Rh4, Qxc8, Nd5#
  14. 05 Oct '12 15:57
    As far as I can see, any move by either knight or the queen falls to this one...
  15. 05 Oct '12 16:02
    That's the solution I came up with, though there are a few other moves to consider (e.g. Black moving his d-pawn one or two squares).